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针对火成岩岩性与岩石成分、结构、构造和成因有关,岩石类型多,识别难度大的问题,以准噶尔盆地六九区石炭系火成岩为研究对象,利用常规测井资料中所蕴藏的丰富的岩性信息,从多个方面提供了识别火成岩岩性的资料,优选出自然伽马、声波、电阻率、密度、中子等测井参数。在建立了测井相—岩相统计模式之后,利用灰色关联方法对研究工区的火成岩岩性进行识别。识别结果表明,该法能够较准确地对该工区的岩性进行识别,识别率可达90%以上。
Aiming at the problem that the igneous lithology is related to the composition, structure, structure and genesis of the rock, more types of rocks and more difficult identification, taking the Carboniferous igneous rocks in Liujiu District of Junggar Basin as the research object, the abundant rock Sexual information provides information identifying igneous lithology from several aspects, preferably from natural gamma, acoustic, resistivity, density, neutron, and other logging parameters. After the well log facies-facies statistics model was established, the gray correlation method was used to identify the igneous rock lithology in the study area. The recognition results show that this method can identify the lithology of this area more accurately, and the recognition rate can reach more than 90%.